29mm Modular Aluminum Diff 8391X The optional center differential helps

The optional center differential helps balance the power distribution to reduce front end lift on acceleration and improve steering responsiveness

Open Cell Foam Inserts Included

Will NOT work with stock 17mm hubs

Alias® 2

29mm Modular Aluminum Diff 8391X The optional center differential helpsModular Aluminum Differential, 29mm: 1 8 ARRMA HRAAON11ETN02 Hot Racing aluminum 29mm differential carrier (case) for the 1 8, 1 7 Arrma Fits the front, center, or rear differential. See vehicle model compatibility in comments below. FEATURES: CNC machined 6061 aluminum, anodized black CNC machined 6061 aluminum for light weight. Steel pinnon bushing for longevity. o ring for a better seal and reusability. anodized black and Red. Fits the front,